Due to poor production and injection capacity of low permeable reservoir, imbibition recovery plays important role in the oilfield development.
由于低渗透油藏的生产能力和注水能力很差，渗吸采油在油田开发中发挥着重要的作用。
Among three types of rocks, at zero initial water saturation, imbibition recovery from chalk samples is the highest, about 23% higher than that from sandstone with similar permeability.
在束缚水饱和度为零的情况下，三种类型岩石中以石灰岩的自吸采收率最高，其值比同等渗透率级别的砂岩高23%。
But if matrix permeability is low, higher recovery rate is not allowed to use due to its low imbibition displacement velocity.
如果基质渗透率较低，因其吸渗排油速度低，不宜采用较高的采油速度。
The effect of inorganic salt on spontaneous imbibition and recovery factor of surfactant flooding has been studied under water-wet condition with outcrop sandstone cores.
利用国产露头砂岩岩心，研究了亲水条件下，无机盐对岩心采用表面活性剂溶液进行自发渗吸驱油的规律和采收率的影响。
Many factors affect the process of spontaneous imbibition. This paper is focused on the effect of initial water saturation and rock lithology on rate of imbibition and oil recovery.
影响自吸的因素有很多，文中主要研究束缚水饱和度和岩石性质对自吸速度及采收率的影响。
Spontaneous imbibition is of special importance to the efficiency of oil recovery from fractured reservoirs.
自吸是裂缝性油藏采油的一个特别重要的方面。
Thus oil recovery is enhanced. The mechanism of molecular filming agent mainly includes absorption, wettability alteration, diffusion and capillary imbibition etc.
分子膜剂作用机理主要表现在吸附作用、润湿性改变、扩散作用、毛细管自吸作用等几个方面。
The fluid flow properties and mechanism of fluid flow in low-permeability reservoir with fractured sandstones are complicated. The spontaneous imbibition of water is very important for oil recovery.
低渗透裂缝性油田开发比较复杂，其中水的自发渗吸对原油的开采十分有利。
The fluid flow properties and mechanism of fluid flow in low-permeability reservoir with fractured sandstones are complicated. The spontaneous imbibition of water is very important for oil recovery.
低渗透裂缝性油田开发比较复杂，其中水的自发渗吸对原油的开采十分有利。
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